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Beliebt Word Problems >

9 years from now Paul will be twice as old as Mary.The current sum of the ages of Paul and Mary is 36.How old is Mary right now?

Lösung

9 ye a rs f ro m n o w P a u l w i ll b e tw i ce a s o l d a s M a ry . T h e c u rre n t s u m o f t h e a g es o f P a u l an d M a ry i s 36. Ho w o l d i s M a ry r i g h t n o w ?

Lösung

Mary^{'} s age is : 9

Schritte zur Lösung

Translate the problem into an equation:

x + 9 = 2 (36 - x + 9)

Löse nach

x, x + 9 = 2 (36 - x + 9) : x = 27

Finde Mary's age

: 9

Mary^{'} s age is : 9

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